/**
 * @file oled128x32.cpp
 *
 */
/* Copyright (C) 2017 by Arjan van Vught mailto:info@orangepi-dmx.nl
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:

 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.

 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 * THE SOFTWARE.
 */

#include <cstdio>

#include <cstdio>
#include <unistd.h>
#include <sys/types.h>

#include "bcm2835.h"

#include "ssd1306.h"

int main(int argc, char **argv) {
	if (getuid() != 0) {
		fprintf(stderr, "Error: Not started with 'root'\n");
		return -1;
	}

	if (bcm2835_init() != 1) {
		fprintf(stderr, "bcm2835_init() failed\n");
		return -2;
	}

	if (bcm2835_i2c_begin() != 1) {
		fprintf(stderr, "bcm2835_i2c_begin() failed\n");
		return -3;
	}

	Ssd1306 ssd1306(OLED_PANEL_128x32_4ROWS);

	const bool isDetected = ssd1306.Start();

	ssd1306.PrintInfo();

	char line[] = "Line ";

	if (isDetected) {
		for (int i = 1; i <= 4; i++) {
			ssd1306.TextLine(i, line, sizeof(line) - 1);
			ssd1306.PutChar('0' + i);
		}
	}

	return 0;
}
